Patent number: 7109355
Abstract: A nonlinear optical chromophore having the formula D-?-A, wherein ? is a ? bridge including a thiophene ring having oxygen atoms bonded directly to the 3 and 4 positions of the thiophene ring, D is a donor, A is an acceptor, and the oxygen atoms are further substituted with a fluorinated group comprising at least three fluorines is described. Some examples of fluorinated groups comprising at least three fluorine atoms are 2,2,2-trifluoroethyl; 2,2,3,3,3-pentafluoropropyl; 2,2,3,3,4,4,4-heptafluorobutyl; 2,2,3,3,4,4,5,5,5-octafluoropentyl; 3,3,4,4,-5,5,6,6,7,7,8,8,8-tridecafluoro-1-octyl; 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8 -pentadecafluorooctyl; 1-trifluoromethyl-2,2,2-trifluoroethyl; 1-trifluoromethyl-2,2,3,3,3 -pentafluoropropyl; 2,3,4,5,6-pentafluorobenzyl; and (2,3,4,5,6-pentafluorophenyl)ethyl.
Type:
Grant
Filed:
January 14, 2004
Date of Patent:
September 19, 2006
Assignee:
Lumera Corporation
Inventor:
Diyun Huang